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Method for sending wireless data

A sending method and wireless technology, applied in wireless communication, data exchange network, digital transmission system, etc., can solve the problem of excessively receiving redundant information, and achieve the effect of saving terminal power

Inactive Publication Date: 2013-05-08
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The above terminal receives all the data sent by the sender. This method will bring too much redundant information for terminals with better link quality.

Method used

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  • Method for sending wireless data

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Embodiment Construction

[0024] In order to solve the shortcomings of the traditional technical solutions, the present invention further illustrates a wireless data transmission method according to the present invention through the following specific embodiments. The specific embodiments are described in detail below, but are not intended to limit the present invention.

[0025] The core idea of ​​the present invention is to perform channel coding for one or more original data packets at a relatively low code rate, and then recombine the information bits and check bits into multiple segments, and combine the data in the same original data packet. Several data segments are sent at intervals in time.

[0026] Such as figure 1 Shown is a flowchart of a method in an embodiment of the present invention.

[0027] Step 100: Add a CRC (Cyclic Redundancy Check) check to the original data packet to generate new data with CRC check;

[0028] Step 101: Use a relatively low code rate (such as 1 / 3 code rate) to perform cha...

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Abstract

The invention discloses a method for sending wireless data, which comprises the following steps: A, coding a primary data packet and then dividing the primary data packet into a plurality of data segments; and B, mapping the data segments to different resources respectively, and sending the data in discontinuous time. The method can meet the requirement of terminals with different link qualities on receiving respective data quantity needing to be received only at the moment and processing the data; therefore, the method is favorable for saving the electric quantity of the terminal with good link quality. The sending mode is not only suitable for point-to-point service, but also more suitable for point-to-multipoint service.

Description

Technical field [0001] The present invention relates to a method for transmitting wireless data, in particular to a method for transmitting data packets in MBMS (Multimedia Broadcast Multicast) service. Background technique [0002] The transmission medium of wireless communication is the wireless channel. More precisely, the wireless channel is the propagation path between the base station antenna and the user antenna. The antenna induces current to generate electromagnetic oscillation and radiate electromagnetic waves. These electromagnetic waves propagate in free space or air, and are finally induced by the receiving antenna to generate induced current. The propagation path of electromagnetic waves may include direct propagation and indirect propagation. The existence of multiple propagation paths causes changes in the characteristics of wireless signals. [0003] The fading characteristic of the wireless channel depends on the radio wave propagation environment. Different env...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/12H04W28/00H04L12/70
Inventor 苟伟毕峰李峰
Owner ZTE CORP